MOSFET OUTPUT SSRs
In the world of electronics, logic controls power.
Solid State Relays, Optocouplers, MOSFET and TRIAC Drivers for the safe, isolated control of the electronics powering your world.
FORM C SSRs · ATE
Built for semiconductor test.
Form C relays for automated test equipment: fast, bounce-free, and immune to EMI in dense board layouts.
Product families
Over 250 optically isolated devices
104 devices
MOSFET Output SSRs
MOS Output Solid State Relays (SSRs) are the most reliable, technically advanced logic-to-power interface devices available. Their basic function is to take a low current signal from a microprocessor to control the switching of both AC and DC loads, while providing an isolation barrier between logic and power.
Key specs
Blocking voltage 50–1200 VLoad current 35–6000 mAIsolation voltage 300–5000 Vrms
Features
- Long life, fast and reliable switching
- Bounce-free switching
- Optical input-to-output isolation up to 5000 Vrms, and beyond
- Low drive current options (<1 mA)
- Current limiting option (part number ending with -L)
- Current interrupt option — the SSR acts like a re-settable fuse
- Small package size, as small as a 5 × 6 mm DFN
- Immunity to EMI and RFI
- Wide range of load voltage and load current
- Broad range of packages, from ultraminiature 5 × 6 mm DFN to high-power 4-pin SuperSIP
- AC or DC load switching
Applications
- Home and safety security systems
- Battery monitoring
- I/O boards and subsystems
- Energy management devices and systems
- Home automation
- Programmable controllers
- Multiplexers
- Telecom and datacom switching
- Data acquisition
- Medical equipment
- Robotics
- Aerospace
- Reed relay and EMR replacement
50 devices
AC Output SSRs
Solid State Optronics AC Output Solid State Relays (SSRs) provide an optically isolated means of switching AC loads. Offered with either SCR or TRIAC output structures, and with either ZVC (Zero Volt Cross) or RP (Random Phase) switching, AC Output SSRs tend to be more robust than their MOSFET Output counterparts, typically making them better suited to industrial switching applications wherein a load may connect directly to an AC line.
Key specs
Blocking voltage 400–800 VLoad current 400–1200 mAIsolation voltage 5000 Vrms
Features
- High blocking voltage, up to 800 V
- Switching AC loads without the generation of transients (ZVC devices)
- High input-to-output isolation (5000 Vrms)
- Long life, bounce-free switching
- Compact package size
- High input-to-output noise immunity
- Random Phase and Zero Volt Cross switching
Applications
- Programmable control
- Valve control
- Solenoids and coils
- Home appliances
- Metering equipment
- Heating controls
- Dimmer controls
- Process controls
- Contactors
- Motor controls
31 devices
MOSFET Drivers
Also referred to as MOSFET Gate Drivers or Gate Drive Optocouplers, SSO Photo-Voltaic MOSFET Drivers are an optically isolated means of driving discrete MOSFETs. Unlike conventional MOSFET Drivers, Photo-Voltaic MOSFET Drivers require no complex and costly external power supply circuitry to operate.
Key specs
Isolation voltage 1500–5000 Vrms
Features
- Input control current (2–20 mA)
- Solid state reliability
- Short circuit currents (3–25 µA)
- Open circuit voltages (6–14 V)
- No need for an external power supply
- Offered in 4-pin SOP, 6-pin DIP/SMD and 8-pin DIP/SMD packages
- High input-to-output potential isolation, up to 5 kVrms
Applications
- Discrete SSRs
- MOSFET gate drive
- Telecommunications
- Programmable controls
- Process controls
- Floating power sources
- Instrumentation
32 devices
Optocouplers
Optocouplers provide a means of optically isolated signal coupling. Whereas SSO's MOSFET and SCR Output SSRs provide integrated switching solutions, our broad line of optocouplers allows for flexibility where completely electronically isolated devices can be coupled discretely to a wide range of load handling components such as power MOSFETs and TRIACs.
Applications
- Office equipment — registers, copiers, fax machines and laser printers
- Home appliances — microwave ovens, washers and dryers, refrigerators and air conditioners
- Automatic vending machines
- Measuring instruments
- Signal transmission between circuits of different potentials and impedances
- Medical instruments, physical and chemical equipment
- Industrial robots and telephone sets
- Hybrid substrates that require high density mounting
- Computer terminals and programmable controllers
- Audio and video equipment
- Communications and telephony
- Switching power supplies
36 devices
TRIAC Drivers
Also known as a Phototriac Coupler, a TRIAC Driver is a specific type of optocoupler used exclusively to provide an optically isolated gate drive current to a TRIAC. This allows designers greater flexibility in selecting the gate drive current and isolation value desired separately from the TRIAC required. The TRIAC Driver and TRIAC combination is a common means of creating a discrete, high powered SSR.
Key specs
Blocking voltage 400–800 VIsolation voltage 3750–5000 Vrms
Features
- Variable load voltages, 400 V to 800 V
- Random Phase and Zero Volt Cross switching
- Offered in 4-pin SOP, 4-pin DIP/SMD and 6-pin DIP/SMD packages
- High input-to-output isolation voltage, 5 kVrms and beyond
- Low input control current, as low as 2.5 mA
Applications
- Motor control
- Motor starters
- Lighting controls
- Dimmer circuits
- Static power switches
- Temperature controls
- Solenoid and valve controls
- Solid state relays
4 devices
IGBT Drivers
IGBTs are commonly used in power electronic applications such as Uninterruptible Power Supplies (UPS), solar inverters, inductive heating, motor control, HF welding and other PWM applications that require high switching speeds. SSO's offering of optically isolated IGBT Drivers provides a high level of input-to-output isolation (5 kVrms) between low voltage control circuits, such as microcontrollers, and the high voltage circuits of IGBTs and power MOSFETs.
Key specs
Isolation voltage 5000 Vrms
Features
- Fast switching speeds
- 400 ns maximum propagation delay
- 250 ns maximum propagation delay difference
- Maximum peak output currents of 0.6–2.5 A
- Low power dissipation (RON ≤ 1 Ω)
- ICC = 3 mA maximum supply current
- Wide supply voltage range, 15 V to 30 V
- Under-voltage lockout protection (UVLO) with hysteresis
- High common mode rejection: 10–25 kV/µs at VCM = 1500 V
- High input-to-output isolation (5 kVrms)
- Rail-to-rail output voltage
- Broad temperature performance range, −40 °C to 100 °C
- RoHS, Pb-free and REACH compliant
Applications
- IGBT and MOSFET gate drives
- Industrial inverters
- AC and brushless DC motor drives
- Switch mode power supplies
- Uninterruptible power supplies (UPS)
5 devices
Specialty Products
Specialty Products include a wide range of devices that are either hybrid in nature, custom in design or application, or otherwise do not fit in conventionally defined product families.
Key specs
Blocking voltage 400 VLoad current 120 mAIsolation voltage 1500–5000 Vrms
Features
- Low input control current
- Optically isolated function integration in a single package
- Optically isolated coupling to a broad range of defined output types
- Consolidated circuit functions in a single device, freeing up valuable board space
- Reduced component count — an SSR plus optocoupler (TR115, STS100), or an SSR plus bridge rectifier, Darlington and optocoupler (STS700/710)
Applications
- Telecom and datacom switching
- I/O sub-systems
- Industrial controls
- Home and safety security systems
- Medical equipment
- Robotics
- Aerospace
Made to order
High-Temp / Hi-Rel
As an innovative company, we work closely with our customers to understand and respond to your requirements. In addition to custom products, SSO also offers Hi-Temp and Hi-Rel versions of many of our standard products to address the demands of your applications.
Every Hi-Rel device is a standard product screened to your requirement, so there is no fixed parts list to browse.
Services
- Guaranteed operation up to 105 °C and beyond
- Guaranteed operation to −40 °C and lower
- 100% burn-in (HTRB) per customer requirement
- Thermal cycle testing on a per lot basis
- Thermal shock testing on a per lot basis
- Full parametric testing at room temperature, at elevated temperature, or over a temperature sweep
- Datalogs of testing, with serialization of parts
Full product traceability
- Full assembly traceability by manufacturing lot
- Full materials traceability by material lot
- Archive samples per each manufacturing lot
- Archive of records for a minimum period of 5 years
Latest at SSO
Product news
SSO has announced the availability of a new miniature AC Output Solid State Relay with a high blocking voltage of 800V.
From our lab
A global electronics company based in Western Europe approached us with a technical challenge. SSO delivered.
Application notes
In a MOSFET based relay, both AC and DC signals can be switched. The output utilizes two n-channel type MOSFETs. When controlling an AC load, one of the MOSFETs is used to switch the positive phase of the AC cycle while the other is used to switch the negative phase. When controlling a DC load, only one MOSFET is needed, and the relay can be configured to enhance switching characteristics.
Over 40 years of industry experience.
Looking for devices that handle load voltages of 1kV or more, isolation of 5kV–10kV, or fast switching of high-frequency loads?
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